France's most famous cemetery, with some of its most curious tombs.

A museum of carnival attractions where you are invited to ride the rides.

The celebrated eyesore created by starry-eyed sweethearts.

An ancient ossuary in Rouen.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

The largest underground church in Europe.

Ancient paintings known as the "Sistine Chapel of Cave Art."

The topiary maze at the Habsburg hunting lodge.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

This former insane asylum now holds a pathological anatomy museum.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The beautiful baroque library of the Hapsburg empire.

The final resting place for the remains of 143 Habsburg royalty.

Baroque celebration of the end of the Great Plague of Vienna.